Tools & Wizards About Us

Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

stereomanuals.com

Welcome!

Page Load Speed

2.3 sec in total

First Response

132 ms

Resources Loaded

1.9 sec

Page Rendered

301 ms

About Website

Visit stereomanuals.com now to see the best up-to-date Stereomanuals content for United States and also check out these interesting facts you probably never knew about stereomanuals.com

StereoManuals has High Quality Service Manuals Factory ORIGINAL Manuals PDF Manuals Electronics Repair Schema Schematic & User Owner Operating Instruction Manuals Vintage Classic Audio Stereo Equipmen...

Visit stereomanuals.com

Key Findings

We analyzed Stereomanuals.com page load time and found that the first response time was 132 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

stereomanuals.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.225

55/100

15%

TTI (Time to Interactive)

Value7.7 s

46/100

10%

Network Requests Diagram

stereomanuals.com

132 ms

www.stereomanuals.com

158 ms

quirks.css

70 ms

breadcrumbs.js

73 ms

smoothscroll.js

73 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 12% of them (8 requests) were addressed to the original Stereomanuals.com, 12% (8 requests) were made to Googleads.g.doubleclick.net and 10% (7 requests) were made to Image2.pubmatic.com. The less responsive or slowest element that took the longest time to load (622 ms) relates to the external source Connect.facebook.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 309.9 kB (50%)

Content Size

622.0 kB

After Optimization

312.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stereomanuals.com main page is 622.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Javascripts take 436.5 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 40.5 kB

  • Original 54.5 kB
  • After minification 51.9 kB
  • After compression 14.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 40.5 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 2.5 kB

  • Original 117.3 kB
  • After minification 114.8 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Stereomanuals images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 254.9 kB

  • Original 436.5 kB
  • After minification 433.8 kB
  • After compression 181.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 254.9 kB or 58% of the original size.

CSS Optimization

-88%

Potential reduce by 12.0 kB

  • Original 13.6 kB
  • After minification 9.6 kB
  • After compression 1.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Stereomanuals.com needs all CSS files to be minified and compressed as it can save up to 12.0 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (42%)

Requests Now

62

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stereomanuals. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

stereomanuals.com accessibility score

75

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

stereomanuals.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

stereomanuals.com SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stereomanuals.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Stereomanuals.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Stereomanuals. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: